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Overall sea concrete filled steel tube component and application method thereof

A steel tube concrete and concrete technology, which is applied to bridge parts, underwater structures, infrastructure engineering, etc., can solve the problems of high cost of components, not in line with the national sustainable development strategy, and high cost, so as to ensure durability and work performance, alleviating the shortage of river sand supply, and the effect of solving corrosion problems

Inactive Publication Date: 2015-01-07
HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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  • Abstract
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  • Claims
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Problems solved by technology

However, the coral steel pipe concrete column is relatively environmentally friendly and economical. Sea sand and coral can be obtained locally, but fresh water is needed in the production process, the cost is relatively high, and the process is relatively complicated.
[0005] In summary, the cost of the above three components is high, the economic benefits are not optimal, and they do not conform to the national sustainable development strategy

Method used

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  • Overall sea concrete filled steel tube component and application method thereof

Examples

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Effect test

Embodiment 1

[0029] Example 1: All-marine steel pipe concrete member and its application

[0030] Full marine steel pipe concrete components, the specific composition is as follows figure 1 As shown, a steel tube coral concrete member includes a steel tube 1, and the steel tube is filled with concrete 2, and the concrete is composed of coral, sea sand, sea water and cement, and the coral is used as the coarse aggregate, and the sea sand is used as the fine aggregate. , forming a solid steel pipe, and the two ends of the steel pipe 1 are closed.

[0031] The application mode of the prepared full-ocean concrete-filled steel tube member: the full-ocean concrete-filled steel tube component can be used for high-rise structures (columns and piles); high-rise or super high-rise buildings (columns and piles); industrial workshops (columns); offshore platform structures support columns (columns); elevated railway or road bridges (columns and truss-rib arches).

Embodiment 2

[0032] Example 2: All-marine steel pipe concrete member and its application

[0033] Full marine steel pipe concrete components, the specific composition is as follows figure 1 As shown, a steel tube coral concrete member includes a steel tube 1, and the steel tube is filled with concrete 2, and the concrete is composed of coral, sea sand, sea water and cement, and the coral is used as the coarse aggregate, and the sea sand is used as the fine aggregate. , forming a solid steel pipe, and the two ends of the steel pipe 1 are closed.

[0034] The particle size is 50mm and the coral debris with irregular shape is used as the coarse aggregate, and coral is used to replace the sandstone in the commercially available cement. The weight ratio of coarse and fine aggregate is 50%, and the water-cement ratio is 0.5. The compression resistance of the coral concrete The strength reaches 20MPa.

[0035] The application mode of the prepared full-ocean concrete-filled steel tube member: th...

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Abstract

The invention belongs to the field of solid concrete filled steel tubes in industrial and civil construction in coastal regions and islands, and provides an overall sea concrete filled steel tube component and an application method thereof. The overall ocean concrete filled steel tube component is manufactured by using coral as coarse aggregate, sea sand as fine aggregate and adding seawater and cement in a certain proportion. The mixing proportion is the same as that of normal concrete, but the coarse aggregate is the coral and the fine aggregate is the sea sand. The overall ocean concrete filled steel tube can be used for replacing the normal concrete component in mainland region and can be used for various buildings in sea regions to realize the aim of using local materials, so that the virgin coral, sea sand and seawater in the sea can be sufficiently utilized, the strategy of sustainable development is satisfied; and furthermore, the transportation cost is saved.

Description

technical field [0001] The invention belongs to the field of solid steel pipe concrete in industrial and civil building structures in coastal areas and sea islands, and provides a full marine steel pipe concrete component and an application method thereof. Background technique [0002] Ordinary concrete-filled steel tube concrete fine aggregate and fresh water have to be transported from the remote inland, so the cost of building materials is very high when ordinary steel tube concrete-filled concrete is used. The column is a member made of river sand concrete poured inside the steel pipe, and sea sand and sea water cannot be used. Ordinary steel pipe concrete is not suitable for use on remote islands, because the resources available on the islands are limited, especially the coarse materials used for mixing concrete. [0003] One improvement scheme in the prior art uses sea sand concrete columns. Although sea sand can be used, desalination treatment is required. However, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C3/34E01D19/00E02B17/00C04B28/00
Inventor 查晓雄王维肖
Owner HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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